problem with WPML

Hello, I've a problem with WPML. My blog is in Italian (www.silvias-trips.com), with an English version too. The main language is displaying properly, but I've no posts on the English version's Home, nor clicking on the categories/tags (I get an Error 404-Page NOT Found). When I go back to Appearance>Customize it corrects the English version and move the Errore screen to the Italian one... How can I solve it? Thanks, Silvia